| Diamond Bar to Arroyo Grande (California) | 175.64 mi (282.67 km) |
| Diamond Bar to Artesia (California) | 17.68 mi (28.45 km) |
| Diamond Bar to Artesia (New Mexico) | 775.62 mi (1,248.24 km) |
| Diamond Bar to Artondale (Washington) | 952.81 mi (1,533.39 km) |
| Diamond Bar to Arvada (Colorado) | 806.26 mi (1,297.55 km) |
| Diamond Bar to Arvin (California) | 100.74 mi (162.12 km) |
| Diamond Bar to Asbury Lake (Florida) | 2,117.38 mi (3,407.60 km) |
| Diamond Bar to Asbury Park (New Jersey) | 2,426.58 mi (3,905.20 km) |
| Diamond Bar to Ashburn (Virginia) | 2,248.59 mi (3,618.76 km) |
| Diamond Bar to Asheboro (North Carolina) | 2,144.47 mi (3,451.18 km) |
| Diamond Bar to Asheville (North Carolina) | 1,993.28 mi (3,207.88 km) |
| Diamond Bar to Ashland (California) | 350.87 mi (564.67 km) |
| Diamond Bar to Ashland (Kentucky) | 1,972.18 mi (3,173.92 km) |
| Diamond Bar to Ashland (Ohio) | 1,990.09 mi (3,202.75 km) |
| Diamond Bar to Ashland (Oregon) | 624.87 mi (1,005.63 km) |
